AFE5803 datasheet(8/53 Pages) TI2

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AFE5803

SLOS763A

– JANUARY 2012 – REVISED JANUARY 2012

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ELECTRICAL CHARACTERISTICS (continued)

AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V, AC-coupled with 0.1

µF at INP and bypassed to ground

with 15nF at INM, No active termination, VCNTL = 0 V, fIN = 5 MHz, LNA = 18 dB, PGA = 24 dB, 14Bit, sample rate = 65

MSPS, LPF Filter = 15 MHz, low noise mode, VOUT = –1 dBFS, ADC configured in internal reference mode, single-ended

VCNTL mode, VCNTLM = GND, at ambient temperature TA = 25°C, unless otherwise noted. Min and max values are

specified across full-temperature range with AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

POWER DISSIPATION

AVDD Voltage

3.15

3.3

3.6

AVDD_ADC Voltage

1.7

1.8

1.9

AVDD_5V Voltage

4.75

5.5

DVDD Voltage

1.7

1.8

1.9

TGC low noise mode, 65 MSPS

158

190

TGC low noise mode, 40 MSPS

145

Total power dissipation per channel

mW/CH

TGC medium power mode, 40 MSPS

114

TGC low power mode, 40 MSPS

101.5

TGC low noise mode, no signal

202

240

TGC medium power mode, no signal

126

TGC low power mode, no signal

AVDD (3.3V) Current

TGC low noise mode, 500 mVPP Input,1% duty cycle

210

TGC medium power mode, 500 mVPP Input, 1% duty cycle

133

TGC low power, 500 mVPP Input, 1% duty cycle

105

TGC mode no signal

25.5

AVDD_5V Current

TGC mode, 500 mVPP Input,1% duty cycle

16.5

TGC low noise mode, no signal

121

TGC medium power mode, no signal

TGC low power mode, no signal

55.5

VCA Power dissipation

mW/CH

TGC low noise mode, 500 mVPP input,1% duty cycle

102.5

TGC medium power mode, 500 mVPP Input, 1% duty cycle

TGC low power mode, 500 mVPP input,1% duty cycle

59.5

AVDD_ADC(1.8V) Current

65 MSPS

187

205

DVDD(1.8V) Current

65 MSPS

110

65 MSPS

50 MSPS

ADC Power dissipation/CH

mW/CH

40 MSPS

20 MSPS

Power dissipation in power down mode

PDN_VCA = High, PDN_ADC = High

mW/CH

Complete power-down PDN_Global=High

0.6

Power-down response time

Time taken to enter power down

µs

Power-up response time

VCA power down

µs+1% of PDN

time

µs

ADC power down

Complete power down

2.5

fin = 5 MHz, at 50 mVpp noise at 1 KHz on supply

(2)

–65

dBc

Power supply modulation ratio, AVDD and

AVDD_5V

fin = 5 MHz, at 50 mVpp noise at 50 KHz on supply

(2)

–65

dBc

Power supply rejection ratio

f = 10 kHz,VCNTL = 0 V (high gain), AVDD

–40

dBc

f = 10 kHz,VCNTL = 0 V(high gain), AVDD_5V

–55

dBc

f = 10 kHz,VCNTL = 1 V (low gain), AVDD

–50

dBc

(2)

PSMR specification is with respect to input signal amplitude.

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